ABB SACE Emax 2 Series - Page 163

ABB | SACE Emax 2
Accessories | 2 - Wiring diagrams
159 | © 2013 ABB | 1SDH001000R0002 - L7804
Continued from the previous page
The following is a key to the symbols used in the wiring diagrams:
Symbol Description
* See the note indicated by the letter
A1 Applications applied to the moving part of the circuit-breaker
A3 Applications applied to the fixed part of the circuit-breaker
A4
Indicative equipment and connections for operating and signalling, external
to the circuit-breaker
BUS1 Serial interface with the external bus
D
Electronic time-delay device of the under-voltage coil YU, external to the
circuit-breaker
F1 Time-delayed trip fuse
GZi(DBi)
Input for zone selectivity for protection G or input in “inverse” direction for
protection D
GZo(DBo)
Output for zone selectivity for protection G or output in “inverse” direction
for protection D
I O1…32 Programmable digital inputs of the Ekip protection release
K51 Overcurrent protection solid-state release
K51 / COM Communication module
K51 / FAN Fan power supply module
K51 / MEAS Measurement module
K51 / SIGN Signalling module
K51 /
SUPPLY
Optional auxiliary power supply module (24-48Vdc and 110-220Vac / dc)
K51 /
SYNC
Synchronization module
K51 / YC Closing command via Ekip protection release
K51 / YO Opening command via Ekip protection release
M Motor for loading the closing springs
M2 Fan motor
O 01...32 Programmable signalling contacts of the Ekip protection release
O SC Contact of the Ekip protection release for synchronism control
Q Circuit-breaker
Q / 1...Q
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Auxiliary contacts of the circuit-breaker
RC RC protection sensor (residual current)
RT1…RT3 Temperature sensors
RTC EKIP Auxiliary contact ready to close the circuit-breaker
RTC Contact for signalling circuit-breaker ready to close
S33M /
1…2
Spring loading motor limit contacts
S43 Switch for setting remote/local control
S51 Opening signalling contact
S75E /
1…4
Contacts for signalling circuit-breaker in disconnected position (only with
withdrawable circuit-breakers)
S75I / 1…5
Contacts for signalling circuit-breaker in connected position (only with
withdrawable circuit-breakers)
S75T /
1…2
Contacts for signalling circuit-breaker in test position (only with
withdrawable circuit-breakers)
SC Push-button or contact for closing the circuit-breaker
SO Push-button or contact for immediate opening of the circuit-breaker
SO1
Push-button or contact for opening the circuit-breaker with time-delayed
trip
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